Gun reviewer / how weapon works

On this channel you will find a video about how the weapon works.
The videos is based on the game: World of Guns: Gun Disassembly
World of guns in Steam : https://store.steampowered.com/app/262410/World_of_Guns_Gun_Disassembly/
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weapon, rifle, pistol, smg, submachine gun, caliber, round, cartrige,